The following bond list is from the business section of a newspaper on January 1, 2016. Notice that each bond shown matures on January 1 in 5, 10, or 30 years. Each bond shown pays a semiannual coupon and the coupon rate is in the column labeled Coupon The Last Price and Last Yield columns indicate each bond's price and YTM at the end of trading. EST Spread indicates the bond's spread above the relevant US Treasury benchmark, given as a percentage. UST indicates which US Treasury security maturity is the relevant benchmark for each bond. EST Volume shows the number of bonds traded during the day. Prices are stated relative to a par value of $100. Fm in the nominal YTM for Pickman Inc.'s bonds. (Note: Do not round your intermediate calculations.) Last Yield EST Spread UST (Years) EST Volume (1000s) Company Coupon Schubert Inc. 8.13% Chapman Inc. 9.63% Rust Inc. 4.50% Murphy & Co. 5.389 Dickman Inc. 7.75% Maturity 01-01-2025 01-01-2046 01-01-2021 01-01-2021 01-01-2026 Last Price $82.25 583.20 $95.18 $101.02 393.56 65,275 59. 22 52.455 55,305 Which bond is trading at a premium? Pickman Inc. Rust Inc. Murphy & Co. Chapman Inc